Subjects with cardiovascular disease or high disease risk are more sedentary and less active than their healthy peers - PubMed (original) (raw)

Subjects with cardiovascular disease or high disease risk are more sedentary and less active than their healthy peers

Ville Vasankari et al. BMJ Open Sport Exerc Med. 2018.

Abstract

Objectives: We investigated differences in objectively measured sedentary behaviour (SB) and physical activity (PA) levels in subjects with cardiovascular disease (CVD) diagnosis or high CVD risk compared with healthy controls.

Methods: The present study includes a subsample (n=1398, Health 2011 Study) of participants, who attended health examinations and wore a triaxial accelerometer (≥4 days). Patients with CVD were identified and CVD risk was calculated for others using Framingham Risk Score (FRS). Participants were categorised into groups: FRS<10%; FRS=10%-30%; FRS>30%/CVD. Raw acceleration data were analysed with mean amplitude deviation (MAD) and angle for posture estimation (APE). MAD corresponding to intensity of PA was converted to metabolic equivalents (MET) and categorised to light (1.5-2.9 METs) and moderate to vigorous PA (MVPA≥3.0 METs). APE recognises SB and standing.

Results: Daily accumulated time of >30 s MVPA bouts was higher in FRS<10% group (46 min) than in FRS>30%/CVD group (29 min) (p<0.001). FRS>30%/CVD group were more sedentary, their mean daily number of >10 min SB bouts (13.2) was higher than in FRS <10% group (11.5) (p=0.002).

Conclusion: Number and accumulated times of SB and PA bouts differed between the CVD risk groups. Causative research is required to assess the importance of SB and PA in prevention and rehabilitation of CVDs.

Keywords: Accelerometer; Cardiology prevention; Physical activity; Sitting time..

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Conflict of interest statement

Competing interests: None declared.

Figures

Figure 1

Figure 1

The differences in sedentary behaviour and physical activity levels between the CVD groups*. CVD: Cardiovascular disease; number: mean daily number of bouts; time: mean daily accumulated total time of bouts; MVPA: moderate- to vigorous physical activity; MET: metabolic equivalent (3.5 mL/kg/min o2 consumption); level: level of weekly physical activity bout lengths; SB: sedentary behaviour; PA: physical activity. *CVD groups: 1. Participants with <10% risk of CVD; 2. Participants with 10-30% risk of CVD; 3. Participants with >30% risk of CVD or CVD diagnosis. CVD risk is based on Framingham risk score (includes age, systolic blood pressure, total cholesterol, HDL cholesterol, smoking, diabetes and antihypertensive medication as explanatory variables). Calculated against: a 10 breaks in SB; b one bout; c 10 minutes; d one MET; e 1000 steps. OR defines odds ratio versus subjects with <10% risk of CVD. The blue circle represents participants with 10-30% risk of CVD. The red square represents participants with >30% risk of CVD or CVD diagnosis.

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